Jewish anti-semitism

Yesterday, I posted a piece by David Frum about Tony Judt, a leftist professor who has proposed that the state of Israel be abolished. Frum wondered whether Judt’s attititudes are anti-semitic. He concluded that they probably are not. I was less than convinced.
Now Frum has learned that Judt is Jewish. Thus, Frum considers whether this fact disposes of any charges of anti-semitism. He argues that it does not: “Unfortunately, having been born Jewish does not inoculate anyone against absorbing